Surface acoustic wave (SAW) device

Details Surface acoustic wave (SAW) device Surface acoustic wave (SAW) device

1995-12-06

1998-09-01

Dougherty, Thomas M.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310344, 310348, H03H 925

Patent

active

058014748

ABSTRACT:
A surface acoustic wave (SAW) device in accordance with the present invention is constituted in such a way that a SAW device chip 2 in which electrode patterns are formed is accommodated within a package composed of a ceramic board 1 and a metallic cap 4. The SAW device comprises metallic patterns 5a and 5b provided at the ceramic board 1 as input/output terminals of the package and having convex portions 6a and 6b connected electrically to bonding pads 8a and 8b of a SAW device chip, respectively, and an elastic body 3 arranged between the metallic cap 4 and the SAW device chip 2. The SAW device chip 2 is fixed such that the bonding pads 8a and 8b are pushed against the convex portions 6a and 6b under a predetermined contact pressure by elastic force of the elastic body 3.

REFERENCES:
patent: 1776009 (1930-09-01), Rieber
patent: 2430478 (1947-11-01), Nelson
patent: 2440709 (1948-05-01), Young
patent: 2639393 (1953-05-01), Birt et al.
patent: 2961554 (1960-11-01), Cook et al.
patent: 4492892 (1985-01-01), Nakatani
patent: 4965483 (1990-10-01), Abe et al.
patent: 5212115 (1993-05-01), Cho et al.
patent: 5281883 (1994-01-01), Ikata et al.
patent: 5699027 (1997-12-01), Tsuji et al.

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